Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.
Average class size
25.75
2025/26
Mainstream classes
8
2025/26
Largest class group
34
2025/26
Classes with 30+ pupils
3
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2006/07
186
7
26.57
29
0
2007/08
214
8
26.75
35
2
2008/09
219
8
27.38
34
2
2009/10
238
8
29.75
37
5
2010/11
207
9
23.00
31
1
2011/12
233
8
29.12
34
4
2012/13
232
9
25.78
34
2
2013/14
233
9
25.89
32
2
2014/15
227
9
25.22
31
1
2015/16
226
9
25.11
33
2
2016/17
231
8
28.88
32
4
2017/18
229
9
25.44
32
2
2019/20
227
9
25.22
32
3
2020/21
222
9
24.67
30
1
2021/22
226
9
25.11
34
2
2022/23
239
9
26.56
34
4
2023/24
224
10
22.40
32
2
2024/25
199
10
19.90
29
0
2025/26
206
8
25.75
34
3
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 1978/79: 57 in 1977/78 → 317, +260 pupils.
Biggest loss in a single year: 1993/94: 433 in 1982/83 → 241, -192 pupils.
Largest single-class increase: 3rd Class in 2025/26 (23 → 36, +13).
Largest single-class decrease: Senior Infants in 2024/25 (28 → 19, -9).
Largest cohort-step gain: 1st → 2nd in 2025/26 (27 → 34, +7).
Largest cohort-step loss: JI → SI in 2024/25 (24 → 19, -5).
Overall: 57 (1977/78) → 218 (2025/26), 161.
Summary statistics (class-level data)
Min / max / mean enrolment per class across the available final by-standard years.
Class
Min
Max
Mean
Years
Junior Infants
16
34
25.0
6
Senior Infants
17
35
25.5
6
1st Class
21
31
26.7
6
2nd Class
24
34
29.5
6
3rd Class
23
36
29.5
6
4th Class
25
34
28.7
6
5th Class
24
34
29.0
6
6th Class
27
32
29.3
6
Total
57
433
229.2
39
Total enrolment over time
Total and gender trends use historical records where available. Class-level data starts in 2020/21.
Enrolment by gender over time
Enrolment by class over time
Cohort progression
Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).